//
//  Status.swift
//  Weibo
//
//  Created by apple on 15/12/18.
//  Copyright © 2015年 itcast. All rights reserved.
//

import UIKit

class Status: NSObject {
    //微博创建时间
    var created_at: String?
    //微博ID  NSInteger  在iPhone 5c以下的设备上 会导致 整型数据被截
    var id: Int64 = 0
    //微博信息内容
    var text: String?
    //微博来源
    var source: String?
    
    //用户模型
    var user: User?
    
    
    //配图的数组
    var pic_urls: [[String : String]]? {
        didSet {
            guard let array = pic_urls else {
                return
            }
            //遍历数组
            //将数组实例化
            imageURLs = [NSURL]()
            for item in array {
                //相信后端 一定能够返回一个 string类型的url
                var urlString = item["thumbnail_pic"]!
    
                //相信后端给定的urlString  一定能够转换为 url对象
                urlString = urlString.stringByReplacingOccurrencesOfString("thumbnail", withString: "square")
                let url = NSURL(string: urlString)!
                //添加url
                imageURLs!.append(url)
            }
        }
    }
    
    //将配图数组转换为 纯种的url对象
    var imageURLs: [NSURL]?
    
    var retweeted_status: Status?
    
    //构造方法 KVC设置值
    init(dict: [String : AnyObject]) {
        super.init()
        setValuesForKeysWithDictionary(dict)
    }
    
    override func setValue(value: AnyObject?, forKey key: String) {
        if key == "user" {
//            print(value)
            //字典转模型
            if let dict = value as? [String : AnyObject] {
                user = User(dict: dict)
//                print(user)
            }
            //注意 需要加return  不然上面字典转模型  就白做了
            return
        }
        
        if key == "retweeted_status" {
            if let dict = value as? [String : AnyObject] {
                retweeted_status = Status(dict: dict)
                return
            }
        }
        
        //给其他的属性设置值
        super.setValue(value, forKey: key)
    }
    
    //过滤
    override func setValue(value: AnyObject?, forUndefinedKey key: String) { }
    
    
    override var description: String {
        let keys = ["created_at","id","text","source","user"]
        return dictionaryWithValuesForKeys(keys).description
    }
}
